Blood Vessel

44 Questions | By Mywickedream | Updated: Mar 21, 2022 | Attempts: 903

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1.

Which of the following is the blood vessel that distributes blood to organs?
- A.
  
  Arteries
- B.
  
  Capillaries
- C.
  
  Venules
- D.
  
  Arterioles
- E.
  
  Veins
2.

This is a blood vessel that conveys blood from the tissues back to the heart.
- A.
  
  Artery
- B.
  
  Arteriole
- C.
  
  Aorta
- D.
  
  Vein
- E.
  
  Capillary
3.

Which artery wall is responsible for vasoconstriction?
- A.
  
  Tunica interna
- B.
  
  Tunica media
- C.
  
  Tunica externa
- D.
  
  Tunica albuginea
- E.
  
  Tunica fascia
4.

This layer of the artery is composed mainly of elastic and collagen fibers.
- A.
  
  Tunica interna
- B.
  
  Tunica media
- C.
  
  Tunica externa
- D.
  
  Tunica albuginea
- E.
  
  Tunica fascia
5.

When an artery or arteriole is damaged, its smooth muscle contracts producing
- A.
  
  A tear in the artery
- B.
  
  A branch off the artery called an arteriole
- C.
  
  A vascular spasm
- D.
  
  Tetanus
- E.
  
  Constriction of the outer four layers
6.

Elastic arteries function as a
- A.
  
  Vasodilator
- B.
  
  Conduit to the tissues of the trunk only
- C.
  
  Barrier to microcirculation
- D.
  
  Pressure reservoir
- E.
  
  Vasoconstrictors only
7.

These vessels make up the largest blood reservoir.
- A.
  
  Arteries and arterioles
- B.
  
  Arterioles and capillaries
- C.
  
  Venules and capillaries
- D.
  
  Veins and venules
- E.
  
  Aorta and veins
8.

This vessel plays a key role in regulating blood flow into capillaries.
- A.
  
  Arteries
- B.
  
  Arterioles
- C.
  
  Venules
- D.
  
  Veins
- E.
  
  Aorta
9.

Which of the below is NOT found in arteries but is found in veins?
- A.
  
  Tunica externa
- B.
  
  Tunica media
- C.
  
  Tunica interna
- D.
  
  Valves
10.

Capillaries are also known as
- A.
  
  Exchange vessels
- B.
  
  Vasoconstrictors
- C.
  
  Vasodilators
- D.
  
  Pressure reservoirs
- E.
  
  Distributing vessels
11.

Which of the below is the most important capillary exchange method?
- A.
  
  Diffusion
- B.
  
  Transcytosis
- C.
  
  Bulk flow
- D.
  
  Active transport
- E.
  
  Primary transport
12.

These control the flow of blood through a capillary bed.
- A.
  
  Thoroughfare channel
- B.
  
  Precapillary sphincter
- C.
  
  Postcapillary sphincter
- D.
  
  Venules
- E.
  
  Veins
13.

Continuous capillaries can be found in the following tissues.
- A.
  
  Skeletal muscle
- B.
  
  Smooth muscle
- C.
  
  Connective tissue
- D.
  
  Lungs
- E.
  
  All of the above
14.

The alternate route of blood flow to a body part through an anastomosis is called
- A.
  
  Anastome
- B.
  
  Blood reservoir
- C.
  
  Detour blood
- D.
  
  Collateral circulation
- E.
  
  Microcirculation
15.

The largest factor that promotes reabsorption of fluids, into blood, from the interstitial fluids is
- A.
  
  Tissue hydrostatic pressure
- B.
  
  Tissue osmotic pressure
- C.
  
  Blood osmotic pressure
- D.
  
  Blood hydrostatic pressure
- E.
  
  Colloid pressure
16.

The pressure driven movement of fluids and solutes from blood into interstitial fluid is called
- A.
  
  Reabsorption
- B.
  
  Filtration
- C.
  
  Bulk flow
- D.
  
  Hydrostatic pressure
- E.
  
  Colloid pressure
17.

This is the volume of blood that flows through any tissue in a given time period.
- A.
  
  Microcirculation
- B.
  
  Circulation
- C.
  
  Blood flow
- D.
  
  Blood pressure
- E.
  
  Resistance
18.

Blood flow depends on which of following criteria.
- A.
  
  Blood pressure
- B.
  
  Systemic vascular resistance
- C.
  
  Blood type
- D.
  
  Blood pressure and systemic vascular pressure
- E.
  
  Blood pressure and heart rate
19.

Which of the below would NOT increase blood pressure.
- A.
  
  Increased blood volume
- B.
  
  Increased sympathetic stimulation
- C.
  
  Increased heart rate
- D.
  
  Increased stroke volume
- E.
  
  Decreased cardiac output
20.

Which of the below factors do NOT increase systemic vascular resistance?
- A.
  
  Decreased vessel lumen diameter
- B.
  
  Increased blood viscosity
- C.
  
  Decreased vessel length
- D.
  
  Increased vasodilation
- E.
  
  Increased blood cell count
21.

This depends mostly on the ratio of RBC to plasma volume.
- A.
  
  Total blood volume
- B.
  
  Blood viscosity
- C.
  
  Systemic resistance
- D.
  
  Blood vessel length
- E.
  
  Size of vessel lumen
22.

Circulation time
- A.
  
  Varies with diet
- B.
  
  Is set by the hypothalamus
- C.
  
  In a resting person is normally 1 minute
- D.
  
  Depends on hormones from the liver
- E.
  
  Will stop a heart if it is lower than 20 seconds
23.

The cardiovascular center is located
- A.
  
  In the thorax
- B.
  
  In the cerebral cortex
- C.
  
  In the cerebellum
- D.
  
  In the medulla oblongata
- E.
  
  In the hypothalamus
24.

Which of the below factors is most important in forcing blood flow through veins?
- A.
  
  Heart rate
- B.
  
  Stroke volume
- C.
  
  Muscular activity
- D.
  
  Blood velocity
- E.
  
  Valve opening
25.

Which of the below would be the response of the body as a result of decreased frequency of action potentials arising from the baroreceptors?
- A.
  
  Increased blood pressure
- B.
  
  Increased parasympathetic stimulation
- C.
  
  Decreased heart rate
- D.
  
  Decreased stroke volume
- E.
  
  Decreased cardiac output